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How to distinguish explosion-proof motors

author:xiaoE date:2020-09-08 10: 05

Explosion proofMotorThey are motors used in flammable and explosive places, because they do not run sparks, explosion-proof motors are mainly used in coal, oil and natural gas, petrochemical, chemical and other industries.Frequency conversion speed motorA general term for motors driven by frequency converters.In fact, the motor designed for the frequency converter is a special frequency conversion motor. The motor can achieve different speeds and torques under the drive of the frequency converter to adapt to the changes in the demand of the load.The motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction.Explosion-proof motorsA type of motor that can be used in flammable and explosive plants, and it does not generate sparks during operation.Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries.In addition, it is also widely used in sectors such as textiles, metallurgy, city gas, transportation, grain and oil processing, papermaking, and medicine.So, how do you know the difference in explosion-proof motors?

The explosion-proof motor system uses a flameproof enclosure to isolate the electrical control part that may develop a spark, arc and dangerous ambient temperature from the surrounding explosive gas mixture.However, this language shell is not sealed, and the surrounding explosive gas mixture analysis can begin to enter the Chinese motor enterprise through the gap between the joint surfaces of the mobile phone shell at the same time.When it comes into contact with ignition sources such as sparks, arcs, and high temperature of dangerous factors in the enclosure, it may cause an information explosion. At this time, the flameproof enclosure of the motor will not be damaged or deformed by itself, and it will mainly pass through the explosion flame or hot gas. When the gap between the joints is transmitted, the surrounding explosive gas mixture cannot be ignited.

The explosion-proof motor has the lowest degree of protection IP55, and GM has IP23, IP44, IP54, IP55, and IP56, so I can't tell from the appearance.Figure 1. According to the principle of electric motors, it can be divided into explosive induction motors, synchronous motors and explosion-proof DC motors. 2. The place of use can be divided into coal mine explosion-proof motors and factory explosion-proof motors. 3. According to the principle of separating explosion-proof motors, increased safety motors, compression motors, non-sparking dust-proof and explosion-proof motors and motors.

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